ruler

noun

rul·​er ˈrü-lər How to pronounce ruler (audio)
1
: one that rules
specifically : sovereign
2
: a worker or a machine that rules paper
3
: a smooth-edged strip (as of wood or metal) that is usually marked off in units (such as inches) and is used as a straightedge or for measuring
rulership noun

Examples of ruler in a Sentence

a summit attended by a number of rulers from around the world This ruler shows inches and centimeters.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Much like the moon — which happens to be Cancer's planetary ruler — Mary has an emotional pull that stirs something deep in those around her, effortlessly drawing them into her orbit with her heartfelt sincerity and loving nature. Athena Sobhan, People.com, 16 Jan. 2025 Throughout history, individual rulers and emperors have attempted to control, heavily tax, and even halt trade along the Silk Roads. Christian Catalini, Forbes, 16 Jan. 2025 The center section has a keychain hole and ceramic window-breaking stud at one end, a ruler along one side (albeit one with no numbers), and a large pry bar at the other end. Ben Coxworth, New Atlas, 16 Jan. 2025 Among the hoard is Eugenius, an infamous ruler considered illegitimate by the Eastern Roman Empire, also known as the Byzantine Empire. Andrea Margolis, Fox News, 15 Jan. 2025 See all Example Sentences for ruler 

Word History

First Known Use

14th century, in the meaning defined at sense 1

Time Traveler
The first known use of ruler was in the 14th century

Dictionary Entries Near ruler

Cite this Entry

“Ruler.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ruler. Accessed 20 Jan. 2025.

Kids Definition

ruler

noun
rul·​er ˈrü-lər How to pronounce ruler (audio)
1
2
: a straight strip of material (as wood or metal) marked off in units and used as a guide in drawing lines or for measuring

More from Merriam-Webster on ruler

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